14.6V 40A AC-DC Aluminum Shell LiFePO4 Battery Charger
- Compact & Design: 8.66 x 5.23 x 2.76 inch | 5.29 lbs
- High Power Output (40A): Delivers 40 amps of charging power, ideal for fast charging large LiFePO4 batteries.
- Aluminum Shell Design: Durable, lightweight, and heat-resistant for long-lasting performance.
- Optimized for LiFePO4: Specifically designed to charge LiFePO4 batteries, ensuring safe and efficient charging.
- Reliable and Safe: Equipped with multiple protection features, including overcharge, overcurrent, and short circuit protection.
- Efficient and Cost-Effective: Fast charging with minimal energy loss, offering a cost-effective solution for users
- Versatile Application: Suitable for a wide range of uses, including RVs, solar power systems, and other off-grid applications.
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FAQs
FAQs
Making the switch to LiFePO4 shouldn't be a solo mission. At WattCycle, our dedicated team of engineers and battery experts are just a phone call or email away, ready to answer your questions and guide your lithium journey.
User Manual
User Manual
Warranty Policy
Warranty Policy
WattCycle Warranty Policy
Thank you for choosing WattCycle. This warranty policy applies to all products purchased through official WattCycle channels and authorized distributors. Please read this policy carefully before installation and use.
I. Warranty Commitment
WattCycle warrants to the original consumer that under normal use conditions, products shall be free from defects in material and workmanship from the date of original purchase.
1. Warranty Period
|
Product Category |
Specific Model/Series |
Base Warranty |
Extended Warranty (with Registration) |
|
LiFePO4 Batteries |
All new battery models |
5 years |
2 years (7 years total) |
|
Like-New Products |
All like-new models |
1 year |
— |
|
Battery Cells |
All models |
No warranty |
— |
|
Accessories |
Chargers, inverters, controllers, wiring cables, etc. |
1 year |
— |
Note: Extended warranty must be activated through product registration on the official WattCycle website within 3 months of purchase.
2. Warranty Period Calculation
- The warranty period begins from the original consumer’s purchase date.
- Valid proof of purchase (order screenshot, invoice, etc.) is required to establish the purchase date.
- Repaired or replaced products do not extend the original warranty period, which remains based on the original purchase date.
II. Warranty Claim Process and Fees
1. Claim Process
- Step 1: Contact WattCycle Customer Service (service@wattcycle.com), describe the issue, and provide proof of purchase.
- Step 2: Our technical team will contact you within 24-48 hours to assist with troubleshooting.
- Step 3: Once the issue is confirmed as a quality defect, customer service will provide a Return Merchandise Authorization (RMA) number and return instructions.
2. Fee Responsibility Rules
|
Scenario |
Resolution |
Shipping Responsibility |
Notes |
|
Quality issue (within 6 months) |
Free replacement/refund |
WattCycle covers shipping costs |
Requires quality defect confirmation, valid proof of purchase, within warranty period. |
|
Quality issue (after 6 months, within warranty) |
Free replacement |
WattCycle covers shipping costs |
Requires quality defect confirmation, valid proof of purchase, within warranty period. |
|
Personal reason (return within 30 days) |
Return for refund |
Customer bears return shipping |
Original packaging intact, product in good condition. Warehouse restocking fees will be charged. |
|
Personal reason (return after 30 days) |
Return for refund |
Customer bears two-way shipping |
Warehouse restocking fees and depreciation fees will be charged. |
|
Wrong item shipped / Missing item / Transit damage |
Free replacement |
WattCycle covers shipping costs |
/ |
|
Order cancellation (before shipment) |
Refund |
No shipping charges incurred |
/ |
|
Over 6 months (non-quality issues) |
Returns not accepted |
/ |
/ |
3. Refund Policy
- Refunds are applicable only for quality issues reported within 6 months of purchase. Quality issues identified after 6 months will be resolved through product replacement.
- The refund amount will be calculated after final verification, deducting any applicable fees, and returned via the original payment method.
- Refunds will be processed via the original payment method within 3-5 business days after receipt and inspection of the returned product.
III. Warranty Exclusions (Limitations of Liability)
This warranty does not apply to damage or malfunction caused by:
1. Accidents and Force Majeure
- Accidents, abuse, misuse, or negligence
- Natural disasters such as fire, flood, lightning, earthquakes, extreme temperatures
2. Improper Use and Installation
- Failure to follow installation, operation, or maintenance instructions in the product manual
- Voltage/current mismatch, reverse polarity connection
- Use of incorrect fuses or undersized cables
- Series or parallel connections exceeding permissible limits (e.g., systems exceeding 48V)
- Mixing with other battery brands
3. Unauthorized Modifications or Repairs
- Any disassembly, modification, or repair by unauthorized personnel
- Altered, damaged, or removed serial numbers
4. Normal Wear and Tear and Commercial Use
- Cosmetic wear or scratches from normal use.
- Natural capacity degradation over time (normal aging).
- Use exceeding the product’s designed cycle life or technical specifications.
5. Long-Term Inactivity
- Damage resulting from failure to perform periodic charging maintenance for over one (1) year.
6. Other
- Inability to provide valid proof of purchase.
- Products that have been fully refunded through other means.
IV. Final Provisions
- WattCycle reserves the right of final interpretation of this warranty policy.
- This policy may be revised periodically. All changes will be published on our official website.
Contact Information:
📧 Official Customer Service Email: service@wattcycle.com
🌐 Official Website: www.wattcycle.com
Shipping Service
Shipping Service
Thank you for choosing WattCycle for your LiFePO4 battery needs! We understand that getting your batteries quickly and safely is important to you. This policy outlines the shipping process for WattCycle orders.
Destinations:
- We only ship orders to Continental
- Currently we DO NOT ship to Alaska, Hawaii, and Puerto Rico.
- Please do not use PO Box addresses, which are not within the delivery range of FedEx. If you accidentally use such addresses, please contact us to change them in time to avoid delays in delivery.
Shipping Fee:
- FREE shipping on all orders
- Shipping method: UPS Ground & Fedex
Shipping time:
The time frame of an order delivery is divided into two parts:
- Processing time: 1-2 business days
- Shipping time: 2-5 business days
- The shipping will delay for some objective or uncontrolled reasons. We will notice our customer ahead for delays.
Tracking Your Order:
- Once your order ships, you will receive a confirmation email with a tracking number. You can use this tracking number to track the progress of your shipment on the carrier's website.
Disclaimer:
- While we strive to meet the estimated delivery times provided, these are estimates and actual delivery times may vary depending on factors beyond our control, such as carrier delays or weather conditions.
Changes to This Policy:
- We reserve the right to modify this Shipping Policy at any time. We will post any changes to this policy on our website.
We appreciate your support! If you have any questions about our shipping policy, please feel free to contact us at service@wattcycle.com.
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14.6V 40A AC-DC Aluminum Shell LiFePO4 Battery Charger
Description
Description
Maintenance & User Precautions
- Before charging, carefully review the battery's user manual to ensure its compatibility with the charger's technical specifications.
- Ensure that the charger's positive and negative terminals are correctly connected to the corresponding terminals of the battery (positive to positive, negative to negative).
- During the charging process, ensure that the input/output connectors are securely attached.
- lf any abnormalities or damage to the charger or battery are noticed during the charging process, immediately disconnect the input/output cables.
- If using alternative input cables, ensure that the cable can handle the charger's maximum input current and that the charger's input voltage is within its operating range.
- lf an extension for the output connection is needed, ensure that the connection cable can handle the charger's maximum output current, and the voltage drop between the charger and the battery connection should be kept as low as possible. ideally less than 1% of the battery voltage, Otherwise, it may affect the charging effectiveness.
- The internal voltage of the charger is high and poses a significant risk .In case of any defects, please contact service@wattcycle.com promptly. Users and non-professional repair personnel are prohibited from disassembling or modifying this product without authorization.
- Do not use the charger during thunderstorms or lightning storms.
- Keep the charger body dry and avoid using it in damp or rainy environments.
- Avoid using the charger in direct sunlight or near heat sources.
- Do not use the charger in or near flammable or explosive gas areas.
- Use the charger in a well-ventilated and dust-free area.
- Do not cover the ventilation ports and leave at least 10 centimeters of space around them.
- Avoid shaking, impacting or throwing the charger with force.
Reviews (1101)
Reviews (1101)
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Compact and Portable Design
The WattCycle 14.6V 40A Lithium Battery Charger saves space, offers easy installation, and is very portable.
Fast Charge Lithium Battery Charger
This fast-charge lithium battery charger is designed for quick and efficient power delivery, significantly reducing charging time while maintaining optimal safety standards. Perfect for high-demand applications, it ensures your battery is ready to perform when you need it most.
14.6V 40A Lithium Battery Charger Specifications
Designed to ensure optimal charging performance, efficiency, and longevity for your lithium battery. Key highlights include voltage, current, size, and other details tailored for 12V lithium battery systems.
LED Indicator Error Codes for Lithium Battery Charger
Each error code corresponds to a specific problem, providing clear solutions to ensure proper charging and system performance.
Multi-Protection Lithium Battery Charger
Designed to ensure safe and reliable charging, it helps extend the lifespan of your battery while preventing damage and enhancing overall performance.
Simple and Safe Charging
Carefully follow the straightforward charging steps to ensure efficient and secure operation.
Tech Specs
SPECIFICATION| Brand | WattCycle |
| Model | 12V40A |
| Input Voltage | 90-130Vac50/60Hz |
| Output Voltage | 14.6V |
| Output Current | 40A |
| Product Size (Inches) | 8.66 X 5.31 X 2.76 inch |
| Net Weight | 5.29lbs / 2.4kg |
| Relative Humidity | 5%~95% |
| Atmospheric Pressure | 70KPa to 106KPa |
| Temperature Range | In operation: -10°C to 45°C/14°F to 113°F In storage: -40°C to 75°C/-40°F to 167°F |
| Standby | 🟢(Flashing) |
| Charging | 🔴(Always On) |
| Full Charge / Floating Charge | 🟢(Always On) |
ABNORMAL STATUS
| Over-voltage Protection | 🔴(Flashes 3 times), pauses and loops |
| Over-heat Protection | 🔴(Flashes 5 times), pauses and loops |
| Reverse Connection Protection | 🔴(Flashes 7 times), pauses and loops |
| Short-circuit Protection | 🔴(Keep Flashing) |
Frequently Asked Questions
Q1: Is it easy to install?
Q1: Is it easy to install?
A1:
Yes , it is. You just need to connect the positive and negative terminals of the charger and battery, plug it in and use it.
Q2: Is it suitable for all LiFePO4 batteries?
Q2: Is it suitable for all LiFePO4 batteries?
A2:
This charger is suitable for all sizes of LiFePO4 batteries.
Q3: Is the charging process safe?
Q3: Is the charging process safe?
A3:
This charger uses the latest sparkless charging technology. At the same time, it has over-current, over-temperature, over-voltage and reverse polarity protection mechanisms.
When overcharged or overheated, it will cut off power in time.
During normal use, you don't need to worry about safety issues.
Q4: Does it have a LED display?
Q4: Does it have a LED display?
A4:
This product does not use a LED display. WattCycle charger is designed with a light-up alert function, blinking red (abnormal status) to activate over-temperature/short-circuit/reverse polarity protection/over-power protection, green color is always on when it's fully charged, and red color is always on when it's charging. You can judge the status of the battery and charger according to the lighted status, and pay attention to whether the battery is full or whether there is any abnormality in time.
Q5: What is the warranty policy?
Q5: What is the warranty policy?
A5:
From the original date of purchase, this product is covered by a 1-year warranty. Any non-human-made quality issues occurring during the warranty period will be repaired free of charge.
Let customers speak for us
Exactly as described, includes comms cable and battery cables, screen is easy to read, appears to be accurate ah rating. Quality case. Excellent packaging (thick cardboard box with protective card edge strips with dense foam to cushion movement).
Only improvements they can make are instructions don't explain how to mount the rack and handles but does talk about not included stacking kit mounting. And the app isn't particularly well thought out. I understand it's a reskin of the BMS manufacturers app, but it could be a lot better with very little changes.
But overall 9/10, exactly what I needed at the price I needed.
I haven't had the battery long enough to see battery full potential and charging times. Soon though.
Bought this second battery to use in series with the first battery to make 24V battery bank to run my EG4 direct solar 12,000 Btu 120V ac mini split overnight. I can air condition 600 square foot area with just 2-12.8V 280ah batteries in serious. Although we did another video where we ran this mini split overnight with just one WattCycle 12.8V battery and a 120V ac output inverter Keeps area 600 sq ft area 76-78 degrees overnight even with it being 116 degrees outside yesterday. Still have 40-50 percent state of charge left in batteries in the morning when the battery bank is charged up again. I will definitely buy more WattCycle batteries. Have been using for several months now, extremely reliable for me. Highly recommend the WattCycle batteries.
Batteries arrived in good shape & well packed. Came with short & longer bolts which was helpful. I installed 4 of them in a boat as the primary house side. They replace 4 each 210 AHr AGM batteries that were half again bigger and twice as heavy (120 lbs each) as these ~60 lb 314 AHr LifePO4 batteries. This tripled my house capacity & removed 240 lbs of the weight. I added 250A MRBF Fuses to each +positive battery, as well as a 350A Class-T fuse on the overall DC+ side. Additionally, I added a Victron 500A Waterproof SmartShunt to monitor the charge/discharge levels. For charging, I added a Victron Orion XS 50A DC to DC charger for the alternator, and a 40A LifePO4 AC to DC Charger with a remotely activated plug. So far, the batteries seem to be working as advertised.
Had a few issues with shipping due the batteries being so heavy, may have been dropped by FedEx but WattCycle shipped out a replacement. Can’t fault the customer service. Just finished putting my server rack together before wiring it to the inverter.
I needed longer battery life, my old 100ah battery just wasn’t cutting it. With this battery I can run my fridge/freezer 3 times longer without worrying about running low on battery life.
This harness takes all the guess work out of linking your batteries in a series. Just connect all the wires up and plug the ends in and it’s done. They also come with really nice heat shrink connectors to hook up to your main power wires. 100% a must have for a 36v system.
Use to charge Wattcycle 280. Charges in reasonable time. Helpful display to match my Victron shunt and Bluetooth from battery. Added inline heavy duty on/off power switch to better control charging cycle.
Very well constructed, packaged, and documented battery.
